Mining machine



2 Shets-Sheet 1 MINING MACHINE I M. P. HOLMES Original Filed April 25. 1919 May- 15, 1928.

May 15, 1928. j 1,570,153

M. P. HOLMES MINING MACHINE Original Filed April 25. 1919 2 Sheets-Sheet 2 Iii/ J7 .35 shown in Fig. 1.

Patented May 15, 1.923.

um I

monnrs P. HOLMES, or CLAREMQNT, NEW HAMPSHIRE, Assienon '10 SULLIVAN MACHINERY COMPANY, A CORPORATION OF MASSACHUSETTS. I

" MINING MACHINE.

Application filed April 25, -1919, Serial No 292,667. Renewed November 2'3, 1925.

My invention relates to mining machines;

, It has for its-object to provide an improved 'machi'nesespecially adapted to cutting in a plane or many of'a plurality of planes above the bottom of the machine. Another object of my invention is to provide such an improved machine adapted to I cutting in a pluralityof planes. A further object of my invention is to provide im- 19 proved means especially adapted to use in connection witha standard type: of bottom cutter, whereby the same may be adapted proved construction will, however, hereinafter more fully appear. I j i j In'the accompanying drawings I have shown fonpurposes'of illustration one embodiment which my invention may assume in practice. j a In these drawings, a Fig. '1' is' a side elevation of a mounted cutter equipped with my improvement, the bar adjusting mechanism being shown in section to facilitate illustration."

Fig. 1 is a detail sectional view of'the clutch controlling mechanism.

Fig. 2 is a plan view-of the construction Fig. 3 is a transverse sectional view taken on line 3-3 of Fig. 1.

Fig. 4 is a diagrammatic plan view showing the machine in its different positions during the kerfbutt-in'goperation.

"Fig. 5 is adiagrammatic side elevation I showing the machine in different vertically adjusted positions. 7 p

Fig.6 is adiagrammatic end View showmg the machine in tilted position.

In this illustrative cbnstruction I have shown a mining machine frame or casing' l of usual type slidable o'nits bottom and herein having a shoe 2 adapted to slide over the mine bottom, and a'reversible motor'3 of any suitable type operatively connected through usual feeding mechanism- (not. Shem-1" to a feed operating member ,4

adapted when mtated by the motonto the machine in a. well known manner relative to flexible feeding means hereinin the form of a flexible feeding member 5 in turn guided by usual guiding members 6 and havingflexible feeding portions acting on the opposite ends ofthe machine frame. I I

In v my improved construction, an operative drivingv connection, herein in the form of a chain'7, is connected to a part-driven by the motor, herein to a sprocket8, and

extended above the shoe: 2 and .onopposite sides of the machine center line to the front end of the machine, where it engages a sprocket 9 herein having a lower sleeve 10 journaled on a vertical axis in a suitable bearing 11 herein carried 'on the-front end of a longitudinally 'disposed bottom extension 12 ona removable front head member ,13. and disposed over the front end of the shoe. aFiX'ed'to this sleeve 10,.as by a spline 14, is an upright member,.herein a shaft 15.

As shown, this shaft 15 has freely rotatable thereon at apoint adjacent and above the sprocket 9,"a gearf16, herein constantly meshing with a plurality of, laterally and re'arwardly disposed cooperating gears 17,

herein fixedto the lower ends of laterally spaced upstanding feeding members 18,

herein threaded and supported and .rotat- 1 ably mounted at their upper ends in top. ex.- tensions 19 formed on the front head 13.

Carried upon these rotating threaded members 18 is abracket 2'0, herein carrying nuts 21 adjustable on thethrea'dedmembers and also being provided with guiding members. 22, herein fitting around, and guided by vertically disposed lateral extensions 1 23 formed on the sides of the head 13. This bracket 20, in turn, carries a cutter bar 2 1, herein integrally united therewith, and having rotatably "mounted: thereon a usual cutter-chain 25 drivenf'from a cutter chain drivin gl sprocket 26,. herein rotatable with the shaft '15 and vertically adjustable on a spline 27 extending longitudinally of the upper end of said shaft. Also, it will be observed that I have provided fa Vertically adjustable clutch. member 28' likewise splined on the shaft 15 and normally held in inoperative position by a spring 29, and adapted when.

depressed manually to engage with cooperatnig clutch teeth 30for1nedon the hub of the gear lfi, andtherebyrthrottgh the gears and the feed screw mechanism, raisethe F of the machine so that the cutter chain will bracket and the bar bodily to vary the plane of .ioper ation. Attention is also idirected to the fact that astop, herein in the form of an annular flange 31 provides an ahi lii nt. sa v-whieh Ql' Q mem er 28 isnormally heldl bylitss pring.

In a preferred embodiment of my invention, the machine is truck mounted. Hereinil'tkis slidably and removably mounted in a well known manner in a trough-like supporting V and guiding member 32, herein fixed to and rotat'able with an upper swivel plate "33' swiveled at- 3fl on a lower swivel supporting member or plate 3 5 and adapted tobeiheld in any desired angular positi qI} 'fi 9 5 bring t-he bar 24 into any desired angle to jthe face. Herein, it will also be noted that the tilting means assume the form of supporting screws 39 pivotally connected at 'theirupper ends at 40 to opposite sides of the plate and adjustable bymeans of nuts 41 having operating hand wheels 42 there0n. As in a ,usualconstructionyit will also be observed that the plate 38 is herein 'slidajbjle longitudinally on guides 43 formed on a truck 4e and adapted to be Locked in any desired position th'ereon, herein by pins 45.

' The mining machine l is, as usualin this type of machine, also provided with a gear 46 adapte'dlto mesh with a cooperating gear 47 on 'a truck operatively connected in a usual manner tof'a truck driving shaft {l8 which is in turn connected through truck wheel driving connections 4:9 to the truck wheels 50 sothat, when the mining machine 1v is in a predetermined position upon the tr k t m tor the of'may be uti ed to p op l e u k u ng th nsport of the h ne a m ne l ce t0 a o h r- "In the operation of my improved con: struction it'will be observed that whether he min ng mac ne s a ie p n a t uck as shown, or used as a separate-entity in a o well known manner, the cutter bar thereof may be adjusted in such a manner asto vary the height of the kerf as desired, by, When.

- neces ary, s mp y nne g th l tc v 8 to the clutch teeth 30 on t'he gear 16 and therebyraising or lowering the bar. More particula ly, it Will e fited a t e a maybe adjusted vertically until the nuts 21 on the, bracket 20, engage with the extension 19 on thefront head 13, in which position it will be observed that the top of the bar is disposedsubstantially invthe plane of the top cut a slightly higher kerf. Here also it will he noted ,that when ethe dcsfired ,position of adjustmenthasbeen reached it "is only necessary to release the clutch member 28,

,whereuponzthe ;spring :29 will jfonce the same put-0 engagement the .okutch teeth 28 and into engagement with the abutment 31,

itherehy arresting further upward movement of the bar. Conversely, reversing the motor 3, the direction "of "movement of the bar may be reversedand the same returned to its lowest,positiiomflwherein it is adapted I to cut a fkerf substantially midway of the ,top and bottom of the machine, this limit of t av fb ng s l he y the ng men of the bar wit 1 the abutment 31. carried on th shah" lnth'e use of improved"construction in connection with a truck mounted machine,

it will be understood that the adjustment of the cutting mechanism is obta'in'edsubstantiaflly as described above. Here, however, it will be notedt'hat when'the cutter bar is disposed in [any given horizontal plane, the plane of the same may be tilted as 5 neccssa ry through the manipulation of the hand wheels 42 in such a manner as to bring the bar-into any desired angular variation of the positions obtained by, the vertical adjust-v ing mechanism. WVhen in this pos'ition' it will also be under-stood that the. machine I may then be operated on the truck to make the usual successive sumping, transverse,- and Withdrawal cuts,,sh0Wn at A A and A n Fig. 4:, to cutakerf in advance of the 1 machine, or maybe swung laterally and looked as shown at A to make a longwall cut, all as in a usual manner. As the mechan mfor so op rating and adjus ing h machine doesnot per se form a part of my present invention and is well. known, a more specific descriptibn ofthe same is believed to be unnecessary. I u 7 ,As a result ofmyimproved construction,

ard construction may be adapted to use as an overcutter by removing thegcutter bar and front head thereof and'attaching my improved front head and adjustable cutter bar mechanism in lieu thereof, WVhen thus equipped, it will also be observed that the machine maybe utilized at will as an ordinary shortwall machine slidable'upon its shoe or, if desired, as a mountedentry or longwall cutter, the-cutter bar being adjust able when the machine is. used in either of kerfs to be inserted at will substantially in the plane .of the top offthe machine or in any one of -a plurality of planes'disposed beneath the top thereof and herein above the transverse center line thereof. Also, when the machine is mounted on its truck the bar is tiltable laterally when mounted,

in such a manner as to vary'the angle as these relations, in such a manner as to enable it will be observed that a machine of standto those skilled in ithe art.

desired .andtherebyxadapt it to cutting lat I erally pitching seams, dirt bands, etc. These andiother advantages of my. improved construction will, however, .be clearly apparent 1, While I have in this application ispecifiF cally described one embodiment. which-any invention may assume in practice, it'is to be understood that this form isshownior illustrative purposes only and that the invention may be modified and embodied in other forms Without departing from 'itswspirit or the-scope of the appended claims.

What I claim as new and desire to secure by Letters Patent'is:

M 1. The comb'nation with-a miningmach1ne"c01 npr1smg a casingz'slidable onjthe', 'mi ne-bot-tom and disposed 111'- planes 21Cl]21' cent the latter, of a cutter bar, andmeans for vertically adjusting the latter relative tosaid casing; Y 2. The c'ombinatlon' Wllll a mining machine comprising a casing slidable on the mine bottom and disposed in planes adjacentthelatter, :of a cutter bar, and means for .vertically =adj Listing the latter substantially into the plane of the top of said casing.

3. The combination with a :mining ma-n chine comprising a casing slidable on the mine bottom andfdisposed in planes adjacent'the latteigot a cutter bar, and means forvertically adjusting the latter into a plufalityiQOf planes including a plane substantially at the top of said casing. a =4; Thecombination Witlifa miningfmachine" comprising a -casing slidable on the minebottom and disposed in'planes adjacent the latter, of. a cuttera bar, and means tor vertically adjusting the latter into a plurality of planes a-loove the transverse center 11118 of sald casin 5..The combination ivith a fleXib ly. fed

' laterally movable, mining machine frame,

slidableon a mine bottom andedisplosed in planes 1 adjacent "the latter, of a cutter bar, and means foryertically adjusting the latter relative to saidframe. a v6. The: combination: itha fiexibly'fed- "laterallymovable miningniachine frame slidable on a mine bottom and disposed in planes adjacent the' latter, of a cutter bar, and means for verticallyadjusting the latter substantially into. the plane of the .top of 8. The" combination with a-afleixibly fed laterally "movable mining machine frame sli'dableon a mine bottom and disposedin planes f adjacent "the latter, of a cutter @fbar,

and means. for vertically.adjusting the lat ter into a plurality of planes above the transverse.center line ot said' frame.

. .9. The combinationwith; a mining mas;

chine head adaptedto be applied to a min ing machine casing slidable on'themine bottom and disposed in planes adjacent thelatvtcr, of cuttingmechanism thereon includ a cutter bar, and means thereon for-vc'r tlcally ad usting the plane of said'barf 10. The combination WVlth a mining ma-v chine slidable on the mine bottom and comprising acasing disposedinfpla'ues adjacent the mine bottom, of .a'front head, a cutter bar supported thereon, a cutter chain on said bar, cutter-chain driving mechanism, mechanism for adjusting said bar fverticallyxon said head, and cooperating bar-guiding means. I

11.,The combination chine slidable on themine bottom andncomprising a casing disposed in'planes adjacent the m1nef bottom,.of a front head, acutter bar vertically adjustable thereon, aqoutter chain on said bar, mechanism for driving said chain in anyjaosition of adjustment, and cooperating bar andhead. v v

12. The combination Withamining machine comprising a casing disposed in planes adjacent the .mine bottom,'ot' a' front head therefor havinga lower longitudinally ,-d i$" with a mining Inaguiding means-between said posed extension'adapted to engage the mine bottom, a cutter bar supported 'on'sai'd extension, and means for ad ustmg said bar nto a pluraltiy of vertical posit-ionsthereon.

13. In a kerf cutting'mechanism,. the combination including a imachine frame, a vertically disposed power dr ven 1Il61'l1bO1,;tL'

cutter bar through which the same extends,

mechanism for adjusting said-bar vertically along said member, and aclutch controlling the connectionofsaid adjusting mechanism to said member. 514. In az'kerfxcutting mechanism, the com bina'tion including a machine frame, a :plane' cutter bar, [a power. driven; member supw ported-on said frameiin a position wherein it isiperpendicular toth'eplane ot-said 'bar at a point between the ends of thebar, mechanism for ad usting said bar bodily in a (llI'GCtlOlL longitudinal ot. sald member rela-,

tive of the latter, and mechanismlcontrolling the connection of said ad ustmgmechani sm-to saidmembe'r. I i

15. In a kerf cutting mechanism, the com bination including a machine frame, cut ting mechanism supported thereon forbodily adjustment relative thereto, power driv en member supported on said frame" in a' position perpendicular to, said cutting mechan1sm,.actuat1ng mechan sm tor-said cutting mechanism driven by said mie'mbenfand means for adjusting said cutting mechanism Ehodily i in a gdirec'tion longitudinal of said member relative to the'latter actuatable by said member. w

16. In a kerf cutting mechanism, the combination including a machine frame, a cutter chain supporting cutter bar supported thereon for bodily adjustment relative thereto, a power driven member supported on said frame in a position perpendicularto the orbit of said cutter chain at a point within such orbit, a cutter chain driving sprocket on said power driven member, and means foradjusting said cutter bar bodily in a dire-ction longitudinal of said member including a controllingclutch coaxialwith said member.

17.- The combination with a kerf cutting mechanism including a cutter 'barand a power driven member, mechanism for adjusting said bar vertically relative to said member, and an automatically releasable clutch controlling the connection of said adjusting mechanism to said member.

18. In combination, a truck, vertically ad justable kerf cutting mechanism disposable T251 inia' plura-lityof parallel planes, and a mining machine carrying said vertically adjustable kerf cutting mechanism and operable on said truck or as a separate entity when removed therefrom.

19. The combination with a mining machine comprising a casing slidable on the mine bottom and disposed in a plurality of planes adjacent the latter, of an upright cutter chain driving shaft on said casing,' a cutter bar thereon, a cutter chain on said bar, andmeans for ad usting said bar vertically on said. shaft.

'20. The combination with a mining machine comprising a casing slidable on the mine bottom and disposed in planes adjacent the latter, of a cutter bar, abar carrying-bracket adjustable vertically on the front end of said casing, and mechanism for adjusting said bracket. 1

21. In combination with kerf cutting mechanism, a truck, aswivel support adjust able at will to different angular positions between said said mechanism and said truck I substantial and movable longitudinally of the latter, and means for tilting said swivel support into a pluralityof operative positions about an axis disposed along the longitudinal center line of said truck;

22. In combination with i a gcutter barmechanism, a truck, a bar supporting plat form thereon movable longitudinally o the latter, and operative connections disposed between the platform and the truck and .movable longitudinally relative to the truck for tilting the platform intoa plurality of operative I y in the longitudinal center line of the truck.

23. In combination, kerf cutting'mechanism, a truck, a laterally tiltable support for positions about. an axis disposed the mechanism pivotally mounted on an axis disposed substantially in the longitudinal center line of the truck, and adjustablecooperating supporting means on opposite sides of the pivot, said support and said ad justable cooperating supporting means being movable longitudinally relative to thetruck,

24. The combination with a mining ma-- said bracket including an element coaxial I with said cutter chain driving member.

26. Thecombinatlon with a mining ma chine casing, of a shoe adapted to engage the mine bottom and disposed beneath thecas; ing, a driving member journaled on the front end of said shoe, a cutter bar carrying bracket movable vertically in guided rela: tion with said machine and driving member, a cutter chain on said bracket, vand. means for driving said chain and adjusting said bracket; 7 1 i 4-. I i

27. The combination with a mining ma chine comprising a casingslidableon the cent the latter, "of cutter mechanism including a cutter bar and a cutter chain vertically adjustable relative. thereto, means'for ro-f tating said cutter chain, verticallyadjusting mechanism including a plurality of feed members for said bar, and means for rotating said members. p Y j 28. The combination withia IIllIllIlg ma chine comprislng a casingdisposed 1n planes a mine bottom and. disposed in planes adjas I y adjacent the mine bottom, of an upright cutter chain driving shaft journaledon the front end thereof vertically adjusting" mechanism including a plurality of uprightfeed screws carried on the front end thereoffa cutter bar carrying bracket adjustable re-lar tive to said screws, and means forrotating said screws to vary the elevationof said I20 I bracket includingan element passing through said bar.

29; The combination'with a mining machine comprising in casing disposed in planes adjacent the mine bottom, of an upright cutting mechanism driving shaft j ournaled on the front end thereofi'a plurality 'of,gup right feed screws; carriedon'thefront end thereof, a: cutter bar carrying bracket adjustable relative to said screws, and means including a clutch for connecting said up- 7 ri ht shaft'to rotate said screws'to varythe elevation of said bracket.

'disposable in aplane adjacent the top of said machine or in different planes parallel thereto, and meansfor moving said machine during cutting relative to said truck or relative to the bottom when removed from said truck.

31. In combination, a truck, a mining ma: chine thereon adapted to slide on the mine bottom and having vertically rectilinearly. adjustable kerf cutting mechanism disposable substantially in the plane of the, top oi said machine, and means for moving said machine vduring cutting, relative to said truck or relative to the bottom when removed :trom said truck.v I

32. In combination, a truck, a mining machine adjustably .mounted thereon and adapted to slide on the mine bottom and having vertically .rectilinearly adjustable kerf cutting mechanism, and flexible feeding means for selectively moving said machine during cutting relative to said truck or relative to the bottom when removed from said truck. I

33. In combination, a'truck, kerf cutting mechanism thereon including acutting'element and a drivingmotor'therefor, a support for said kerf cuttingmechanlsm presenting a swivel therefor permitting adjust ment thereof'as a whole at'will to different positions and movable abouta horizontally" disposed pivot located beneath the 'swivel of said kerf cutting mechanism and longitudi nally of said truck'between the sides of the latter, and means for tilting'said support. about its pivot and supporting the same-inits diiierent positions of adjustment.-

34. In combination, a mining machine truck, swiveled kerf cutting mechanism 4, thereon including a cutter bar and a cutter chain thereon and a driving motor for said chain, means for tilting saidmechanism' as a whole relative to'said'truck including a swivel carrying support for said cutting mechanism movable about ahorizontally dis posed pivot and cooperating adjusting: means, and'self-contained means for moving I said kerf cutting and tilting means longitudinally of said truck relative to the latter.

In combination, a mlning machine truck, a support non-rotatably carried there'- on but movable longitudinally therealong, a

cooperating support pivoted on said support on a longitudinal axis, means for adjusting said cooperating support about its axis in either direction from the horizontal, and kerf cutting mechanism on said cooperating support including a cutting element and a driving motor therefor.

36. In combination, a mining machine truck, asupport non-rotatably carried thereon, a cooperating support pivoted on 'said support 'on av horizontallongitudinal .a-xis substantially; midway between 'thesides of the truck, means for adjusting said cooperting support-about its axis, and kerf cut-.

ting mechanism swiveled on said cooperating support for adj usment at will as a whole relatively thereto and including a, cutting element and a driving motor therefor.

l 37. In combination, a mining machine truck, a support .non-rotatably carried thereon, a cooperating support pivoted Lon saidsupport on a horizontal'longitudinal axis substantially midway between the sides of the truck, means for adjusting saidrc'o fl operating support about its axis, kerf cutting mechanism swiveled on said cooperating support for'adjustmentas a whole relative thereto and including a cutting element and a driving motor therefor, and

means for holding said lierf.cutti-ngmecha-- nism 1n'd1fi'erent angular relations to sa d cooperating support. I j 38.1n a'mining. machine, a .mining' machine truck, a supportnon-rotatably carried thereon, a. cooperating support tiltableon said first mentioned support about an axis extending longitudinally of the truck betweenthefsides of, the latter, tilting means 4 between :said supports, and a complete min ing machine capable of cutting on its own bottom, disposedzon said cooperating, sup port and tiltable therewith. v

39.. Inamining machine, a mining machine; truck, a support? non-'rotatably carried thereon, a cooperating support-tiltable on saidfirstmentioned supportv about an axis extendinglongitudinally of the truck d between the sides of thelatter, tilting means between s'aid'supports, a complete mining machine capable of cutting on its own bottom on a mine .bottom swiveled on'said cooperating support and tiltable therewith, and means for holding saidimining machine in different angular relations with respect tosaid cooperating support. 7' c.

40. In a mining machine, a mining machine truck, asupport non-rotatably carried thereon, a cooperating support tiltable lat erally about a longitudinal pivot carried on said first mentioned support, tilting means on opposite sides of said pivotand between. said supports, a complete mining machine capableof cutting onits own bottom on a mine bottom swiveled on saidv cooperating support and tiltable therewith,: and means for holding said mining machine infdifierentl angularrelationswith respect to said" latter, a cutter bar carried on one end 7 thereof and disposed in a plane intersecting said'casing, and means on said casing for adjusting said bar into a parallel plane.

42. In a mining machine, a mining machine casingsl'idably supported on the mine bottom and disposed in planes adjacent the latter, a cutter bar carriedon one-end thereof and disposed ina horizontal plane inter secting said casing, and means on saidjcasing for adjusting said bar into a differentplane parallel to the bottom of said casing, 43; In a mining machine, a mining machine casing slidably supported on the imine' bottom and disposed in planes adjacent the latter, a cutter bar carried on one end thereof and disposed in a horizontalplane intersecting said casing, and means on said casing for ad ustlng said bar nto a differ- 'ent horizontal plane substantially coinciding with one of the surfaces of said casing.

44. In a mining machine, a mining machine casing slidably supported on the mfnebottom and disposed in planes adjacentthe latter, a. *cntter'bar carried on one 'end.'there-' v of, and means on said casing for adjusting said bar into a horizontal plane between the top and bottomof said casing or into a horizontal plane at a different vertical elev'ation from said horizontal plane. 1 45. In a mining machine, a mining machine casing disposed in planes adjacent the -mine bottom and adaptedto slide on its own bottom on a mine bottom, a cutter bar carried on one end thereof, and means on said casing for ad usting said bar into a horizontal plane between the top and bottom of said casing or into a horizontal plane above said plane. a 1 46; In a mining machine, a ining mat-- chine casing 'disposedin planes adjacent the mine bottom and adapted to slide on its own bottom on a mine bottom, a cutter bar carri'ed atone end of said casing, and disposed in a plane intersecting said casing, and means on said "casing for adjusting said out 5 ter bar into a different plane Ypara=llel"ti said plane and below the latter. v

47. In a mining machine, mining mechanism including a machine casing slida'ble relative toa mine bottom and disposed in planes adjacentthe latter and having a cutter chain carrying cutter bar on hone end of said casing, means for adjusting said bar into positions in a plurality of horizontal planes,and flexible feeding means for pro: pelling said bar laterallyto form' a kerf in a face acting in a plane below the upper-- mostposition of said ban.

48. Ina mining machine, mining meshes nism including a mining machine casing slidable on a mine bottom and disposed in planes adjacentv the bottom. and having a cutter chain carrying cutter bar carried on one endof said casing,.means for adjusting said' bar into positions in a plurality of horizontal 'plan'es,- and flexible feeding means for prop'elling said bar laterally to form a kerf in a face including a guiding member disposed adjacent said bar'andbe neath the uppermost position thereof.

49; The combination with a mining machine comprising an elongated frame and a cutter bar and slidable on a mine bottom and disposed in horizontal planes adjacent the latter, of means on said machine Whereby while said frame is-retained-of the same height said bar may be disposed for cutting in different horizontal planes relative to the surface of said frame which engages the mine bottom witheach of said planes intersecting the frame substantially throughout the length of the latter "50. The COIIlblIlltl011Wltl1 a mining machine comprising an elongated frame and a and disposed inhorizontal planes adjacent the latter, of means on said machine whereby' While said frame is retained of the same height said bar may be disposed for cutting in different horizontal planes relative to the surface .of said frame which engages the mine bottom with each of sa id planes intersecting the, frame substantially throughout the length of thelatter, and flexible feeding mechanismoperable todfeed said machine laterally in any position of said bar.

.-52.iT'he combination with a miningmachine comprising a'n elongated frame and a cutter bar and slidable on amine bottom and disp'osedin horizontal planes adjacent the latter, of means on said machine whereby'while said frameis retained of the same height said ba-r may be disposed for cutt ng in different horizontal {planes relative to the surface of said frame wvhich engages the mine bottom with eachof said/planes inter secting the frame substantially throughout the length of the latter, and flexible feeding mechanism includingflex-ible feeding por; tions acting onv the opposite ends of said frame and operable to feed said frame laterally in any position of said bar.

53. The combination with a mining machine com'prising an elongated frame and a cutter bar and slidable on a mine bottom i ill) and disposed, in horizontal planes adjacent the l-atter,-of means on said machine'whereby while'saidframe isretained of the same height said bar may be disposed for cutting in different horizontal planes relative to the surface of said frame engaging the mine bottom each of which intersects said frame cutter bar and slidable on a mine bottom and disposed in horizontal planes adjacent the latter, of means on said machine whereby'while said frame is retained of the same height said bar may be disposed for cutting in different horizontal planes relative to the surface 'of' said frame engaging'the mine bottom'each of which intersects said frame substantially throughout the length of the latter, and flexible feeding mechanism including flexible feeding portions acting on the opposite ends of said frame and operable to feed said;fram'e laterally in any position of said'loar while pulling in a plane below the uppermostposition of said bar.

The combination with a mining inachine slidable on a mine bottom and disposed in planes adjacent the latter, of cutting mechanism including a cutter chain carrying cutter bar, projecting from and carried by one end of said machine and a cutter chain driving sprocket at the end of said machine from which said bar projects, flexible feeding mechanism on said machine in cluding a feed operating member adapted to cooperate directly with flexibe feeding means and disposed adjacent the other end of said machine, a motor on said machine,

and means for drivin said sprocket from the end of said motor toward said feed operating member.

56. In combination with a mining machine slidable on a mine bottom and disposed in planes adjacent the latter, of' cut ting mechanism including a cutter chain carrying cutter bar projecting from and car ried by one end of said machine and having a cutter chain driving sprocket at the end of said machine from which said bar projects, flexible feeding mechanism on said frame including a feed operating member adapted to cooperatedirectly with flexible feeding means and disposed adjacent the other end ofsaid machine, a longitudinally extending horizontal motor on said machine, and meansfor driving said sprocket from the end of said motorwhich is nearer said feed operating member.

57. In combination with a mining machine frame slidable on a mine bottom and disposed in planes adjacent the latter, of cutting mechanism including a cutter chain said frame and a cutter; chain driving sprocket at said end, flexible feeding mechanism on said frame including a feed operat ing member adjacent the other end of the machine and flexible feeding portions acting on the opposite ends of said frame, a horizontally disposed motor on said 'frameon the opposite side of said sprocket from said bar, and means for driving said" sprocket from the end of said motor towardsaid feed operating member. r 58. The combination witha mining machine comprising a frame slidable on a mine bottom :and disposed in planes adjacent the latter and having a horizontal motor thereon and cutting mechanism thereon including a rigidly connected longitudinally extending cutter chain carrying cutter bariand azcutter chain driving sprocket, said sprocket being located in front of said motor and driven thereby, of means for feeding said machine laterally driven by said motor and including power operated and controlled flexible feeding portions acting on the opposite ends of said machine frame and having an advance portion acting in aplane between the mine bottom and the top-of said bar.-

o9. vThe 'combination'with "ad-mining Inachineslidable on a mine bottom andhaving 'alongitudianlly extending horizontal motor thereon and cutting mechanism including a longitudinally extending rigidly connected cutter chain carrying cutter bar and a cutter chain driving sprocket in front of said mo tor, of means driven by saidmotor for feeding said machine laterally including feed operating means and power operated and controlled flexible feeding portions acting on" I the opposite ends of the machine body and having an advance portion acting in a plane between the mine bottom and the top of said bar,-and means for driving said cutter chain driving sprocket from the end of said motor adja'cent-thefeed operating member. I

60. The combination with a mining ma chine slidable on a mine bottom and having a longitudinally extending horizontal motor there'onand cutting mechanism including a longitudinally extending rigidly connected cutter chain carrying cutter bar and a cutter chain driving sprocket in front of said motor, of means for feeding said machine laterally including feed operating means and flexible feeding portions acting on the opposite ends of the machine body and having an advance portion acting in a plane between the mine-bottom and the top of said;

bar, means for driving said cutter chaindriving sprocket from the end of said motor nearer the feed operating means,'a'nd supporting means whereon said machine' may be supported at will for cuttingin a higher plane:

7 of the. casing and a different .kerf below said 61.. In a mining mechanism, in combination, a cutter bar disposable for cutting only in planes substantially parallel to a mine bottom, and means for supporting said bar during cutting at different heights With re spect to the bottom including a casing slid able directly on the mine bottom and having horizontal bounding surfaces to which the bar is parallel at all times during cutting.

62. A mining machine comprising, in combination, a casingslidable directl on a mine bottom, a plane cutter bar. progecting from said casing in parallelism with one surface of said casing, andmeans whereby said .bar may be disposed to out a kerf Whose upper bounding surface is at a distance from the bottom substantially equal .to the height first mentioned kerf While constantly re- .maining in parallelism with the first mentioned surface of the casing. y

63. .In a kerf cutting mechanism, the com bination including a machine frame, a vertically disposed power driven member, a cutter bar through which the same extends, mechanism for adjusting said bar vertically along said members including screw means parallel to said {vertically disposed power driven member and disposed at the, opposite side of the latter fromthe free end of said cutter bar, and a clutch controlling .the connection of said adjusting mechanism" to said member.

64. In a kerf cutting mechanism, the combination including a machine frame, a vertically disposed power driven member, a cutter .bar through which the same extends,

mechanism for adjusting said Ibar vertically along said member including screw means parallel to said'vertically disposed power driven member and having only motionof rotation, and ,a clutch controlling the connection of said adjusting mechanism to-said member.

65. In a .kerf cutting mechanism, the combination including a machine frame, a plane cutter bar, a power driven member supported onjsaid frame in (a position wherein it is perpendicular @to' the plane of the .bar at a point between its ends, and power mechanism .for adjusting said .bar bodily in a direction longitudinal of-said member includ ing a screw rotating on a stationary axis and a nut movable therealong, and mechanism controlling the connectionof saidadjusting mechanism to said member.

66. 1 n a kerf cutting mechanism, the combination including a machine frame, a plane cutter bar, a power driven member supported on said frame in aposition wherein it is perpendicular to the plane of the bar at a point between its ends, and power mechanism for adjusting said bar bodily in a direction longitudinal of said member including a screw rotating on a stationary vertical axis and mechanism controlling the connection of said ad ustiIig mechanlsm to said member. I

. 67. In a'kerf cutting mechanism, the comting mechanism driven by said member, and

means for actuating said cutting mechanism bodily in a direction longitudinal of said member including a screw rotatable on an axis parallel to the axis of said PQWBI 11i?!- en member and arranged at a point at the opposite side of the latter from the freeend of said cutting mechanism.

68. In a mining apparatus, a machine frame slidable on its bottom over a mine bottom and having a motor intermediate its ends, cutting mechanism including a cutter bar on said frame wholly at one end of said motor, a feed operating member at the other end of said motor, and actuating connections for said cutting mechanism extending from the end of the frame at which said feed operating member is disposed.

69. In a mining apparatus, a machine frame slidable'on its bottom over a mine bottom during cutting and having amotor intermediate its ends, cutting and machine feeding mechanisms respectively at opposite ends of said motor, and drivingconnections for one of said mechanisms extend ng parallel to saidmotor and to a point at the op posite end of said motor from said mecha- '71.;In a mining apparatus, a machine frame comprising a motor intermediate its ends, cutting mechanism mounted .forbodily rectilinear adjustment relatiye to said frame and motor at one end of the frame, and means including a power connection extending (to the opposite end of said motor for eifecting such bodily adjustment ofsaid cut ting mechanism.

572. In .a mining apparatus, cutting apparatus including a cutter @bar carrying orbita'lly moving cutting elements and mounted forbodily movementaboutan axis parallel to the plane of the bar, for swinging movement in its planes, and for bodily movement towards and from said axis,smotor-.for effecting orbital movement ofsaid cuttingelements and bodily movement of it self and of said cutter bar, anda ,power connection extending from the end of said motor remote from said cutter bar for efiecting circulation of said cutting elements.

73. In a mining apparatus, cutting apparatus including a cutter bar carrying orbitally moving cutting elements and mounted for bodily movement about an axis parallel to the plane of the bar, for swinging movement in its planes, and for bodily movement towards and from said axis, a motor for effe'cting orbital movement of said cutting elements and bodilyvmovement of itself and of said cutter bar, and a power connection extending from the end of said motor remote from said cutter bar for effecting bodily movement of said cutter bar relative to.

said axis.

74. In a mining apparatus,cutting apparatus including a cutter bar carrying orbitally. moving cuttmg elements and mounted for bodily movement about an axis parallel to the plane of the bar, for swinging move ment in its planes, andfor bodily movement towards and from said ax1s, a motor for effecting orbital movement of said cutting elefrom said cutter bar forefiecting circulation of said cutting elements and for eflecting bodily .movement of said cutter bar relative to said axis.

In testimony whereof I aflix my signature. I

MORRIS P. HOLMES.

CERTIFICATE 0h CGRRECTION. Patent No. 1,670,153. Granted May 15, 1928, to

ldQRRl P. HfiLllES.

It is hereby certified that errer aeeears the printed speciiieatien at the above numbered patent requiring eorreetien as fellows: Page 1, line 5, strike out the words "above the batten: oi the teaehine" and insert the same alter the word "planes" in line 8; page 3, line 56, elaiei 7, for the misspelled word "lateraly" read "laterally"; same page, line liil, claim 12, for the misspelled word "pluraltiy" read "pieraiitf'; arid time 118, claim 14c, for "el read "to"; page 4, line 114, claim 28, atter the word "thereot" insert a comma; page 5, line 73, claim 36, for the misspelled word "adidsatent" read "adjustment"; page 8, line 27, claim 63, or "members" read "member"; and that the said Letters Patent should be read with these eerreetiens therein that the same may conform to the record of the ease in the Pateet Gtiiee. I

Signed and sealed this 16th day of duly, A. D. 1928.

M. J. Moore, (Seal) Acting Commissiener of Patents. 

